pub struct Builder { /* private fields */ }
Expand description

A builder for constructing a packed searcher from a collection of patterns.

Example

This example shows how to use a builder to construct a searcher. By default, leftmost-first match semantics are used.

use aho_corasick::packed::{Builder, MatchKind};

let searcher = Builder::new()
    .add("foobar")
    .add("foo")
    .build()?;
let matches: Vec<usize> = searcher
    .find_iter("foobar")
    .map(|mat| mat.pattern())
    .collect();
assert_eq!(vec![0], matches);

Implementations

Create a new builder for constructing a multi-pattern searcher. This constructor uses the default configuration.

Build a searcher from the patterns added to this builder so far.

Add the given pattern to this set to match.

The order in which patterns are added is significant. Namely, when using leftmost-first match semantics, then when multiple patterns can match at a particular location, the pattern that was added first is used as the match.

If the number of patterns added exceeds the amount supported by packed searchers, then the builder will stop accumulating patterns and render itself inert. At this point, constructing a searcher will always return None.

Add the given iterator of patterns to this set to match.

The iterator must yield elements that can be converted into a &[u8].

The order in which patterns are added is significant. Namely, when using leftmost-first match semantics, then when multiple patterns can match at a particular location, the pattern that was added first is used as the match.

If the number of patterns added exceeds the amount supported by packed searchers, then the builder will stop accumulating patterns and render itself inert. At this point, constructing a searcher will always return None.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Returns the “default value” for a type. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.